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Spectrophotometric Observations of Gel-Free Reaction Front Kinetics in Confined Geometry

Published online by Cambridge University Press:  21 March 2011

Sung Hyun Park ,
Stephen Parus ,
Raou Kopelman  and
Haim Taitelbaum
Sung Hyun Park
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A.
Stephen Parus
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A.
Raou Kopelman
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A.
Haim Taitelbaum
Affiliation:
Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel
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Abstract

We present a new experimental system to study the kinetics of the reaction front in A + B→C reaction-diffusion systems with initially-separated reactants. The set-up is composed of a CCD camera monitoring the kinetics of the front formed in the reaction-diffusion system Cu 2+ + tetra→1:1 complex (in aqueous, gel-free solution) inside a 150 micron gap between two flat microscope slides. This is basically a two-dimensional system. The results are consistent with the theoretical predictions for the anomalous time dependence of the front's width, height,and location.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 651: Symposium T – Dynamics in Small Confining Systems V , 2000 , T7.11.1
Copyright
Copyright © Materials Research Society 2001

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